« previous next »

Author Question: By using a compass to measure the magnetic field direction at various points adjacent to a long ... (Read 96 times)

crobinson2013

  • Hero Member
  • *****
  • Posts: 535
on: Jul 28, 2018
By using a compass to measure the magnetic field direction at various points adjacent to a long straight wire, you can show that the wire's magnetic field lines are
 a. straight lines in space that go from one magnetic charge to another.
  b. straight lines in space that are parallel to the wire. c. straight lines in space that are perpendicular to the wire. d. circles that have their centers on the wire and lie in planes perpendicular to the wire. e. circles that have the wire lying along a diameter of the circle.

Question 2

A current element (length = 1.0 cm) lies along the x axis with its center at x = 0 and carries a 20-A current in the positive x direction. Consider only the field of this current element and decide which combination of the following statements is correct. 1. The field at (0, 0, 1.0 m) is in the positive z direction. 2. The field at (0, 1.0 m, 0) is in the negative y direction. 3. The field at (1.0 m, 0, 0) is zero. 4. The field at (0, 0, 1.0 m) is in the negative y direction.
 a. 3 and 4
  b. 1 and 3
  c. 2 and 4
  d. 1 and 2
  e. None of these


cassie_ragen

  • Sr. Member
  • ****
  • Posts: 347
Reply #1 on: Jul 28, 2018
Answer to Question 1

D

Answer to Question 2

A


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Individuals are never “cured” of addictions. Instead, they learn how to manage their disease to lead healthy, balanced lives.

Did you know?

Computer programs are available that crosscheck a new drug's possible trade name with all other trade names currently available. These programs detect dangerous similarities between names and alert the manufacturer of the drug.

Did you know?

The use of salicylates dates back 2,500 years to Hippocrates’s recommendation of willow bark (from which a salicylate is derived) as an aid to the pains of childbirth. However, overdosage of salicylates can harm body fluids, electrolytes, the CNS, the GI tract, the ears, the lungs, the blood, the liver, and the kidneys and cause coma or death.

Did you know?

Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.

Did you know?

Every flu season is different, and even healthy people can get extremely sick from the flu, as well as spread it to others. The flu season can begin as early as October and last as late as May. Every person over six months of age should get an annual flu vaccine. The vaccine cannot cause you to get influenza, but in some seasons, may not be completely able to prevent you from acquiring influenza due to changes in causative viruses. The viruses in the flu shot are killed—there is no way they can give you the flu. Minor side effects include soreness, redness, or swelling where the shot was given. It is possible to develop a slight fever, and body aches, but these are simply signs that the body is responding to the vaccine and making itself ready to fight off the influenza virus should you come in contact with it.

Testing the effects of long-term fertilizing on inter-actions between mycorrhizal fungi and plants o Testing the effects of long-term fertilizing on inter-actions between mycorrhizal fungi and plants o
Clear the lower leg with long strokes. Start proximal to the ankle, and stroke to the knee and ... Clear the lower leg with long strokes. Start proximal to the ankle, and stroke to the knee and ...
Human activity has released carbon from sequestration in long-term reservoirs Human activity has released carbon from sequestration in long-term reservoirs
A pipe that is 0.46 m long and open at both ends vibrates in the second overtone with a ... A pipe that is 0.46 m long and open at both ends vibrates in the second overtone with a ...
Survivorship curves. Blue lines are theoretical curves. Red dots are data from field studies. Survivorship curves. Blue lines are theoretical curves. Red dots are data from field studies.
Experiments showing that long- or short-day plants flower in response to night length. Each horizont Experiments showing that long- or short-day plants flower in response to night length. Each horizont
Video: Hydrogen bonds - role in the body

For a complete list of videos, visit our video library